intensive

/ɪnˈtensɪv/ (bre, ipa) · /ɪnˈtensɪv/ (ame, ipa) · /in-ˈten(t)-siv/ (ame, mw)

intensive — adjective

  • intensivepositive
  • more intensivecomparative
  • most intensivesuperlative

1. involving concentrated effort, work, or activity that happens within a relativel

1.形容詞B1
釋義

involving concentrated effort, work, or activity that happens within a relatively brief span, often demanding full attention or a high level of energy

例句

Rania took an intensive two-week language course before moving to Seoul for her new job.

intensive + [duration] + course / training / program

The athletes went through an intensive training camp to prepare for the Olympic trials.

attributive: intensive training / therapy / care

同義詞
  • concentrated

    focuses on density and lack of dilution rather than time pressure

  • rigorous

    emphasises strictness and discipline rather than time constraint

  • accelerated

    specifically about being faster than usual, not just concentrated

反義詞

文法句型

intensive + noun

noun-intensive (as combining form)

用法筆記

This sense is most often used before nouns such as course, training, care, therapy, or program. As a combining form attached to a noun with a hyphen (-intensive), it indicates that an activity requires large amounts of a particular resource — for example, labor-intensive (needing many workers), capital-intensive (needing a lot of money), or energy-intensive (using large amounts of power). Unlike intense, which describes the strength of a feeling or quality, intensive describes how effort or resources are packed into a limited time or space.

常見錯誤

The heat in the desert was very intensive.
The heat in the desert was very intense.
💡'intense' describes the strength of a sensation or quality; 'intensive' describes concentrated effort or activity.

2. carried out with very close attention to every aspect or detail, covering all pa

2.形容詞B2
釋義

carried out with very close attention to every aspect or detail, covering all parts of a subject in a thorough and careful way

例句

Detectives launched an intensive search of the woodland after the child went missing.

intensive + search / investigation / inquiry

Months of intensive research led the team to a compound that stops virus spread.

同義詞
  • thorough

    more common in everyday English; less formal than 'intensive'

  • comprehensive

    emphasises covering everything, similar scope but less emphasis on depth

  • in-depth

    focuses on depth rather than breadth of coverage

反義詞
  • superficial

    opposite of thorough or detailed

  • cursory

    done quickly without attention to detail

文法句型

intensive + noun of examination or analysis

用法筆記

Commonly paired with nouns of examination or analysis such as search, investigation, research, review, or inquiry. The emphasis is on the depth and completeness of the work, not necessarily on time pressure (which is the focus of sense 1).

常見錯誤

She gave the contract an intense check.
She gave the contract an intensive check.
💡'intense' describes strong emotion or extreme degree, not the thoroughness of an examination.

3. describing a way of producing crops or raising animals that relies on chemicals,

3.形容詞B2
釋義

describing a way of producing crops or raising animals that relies on chemicals, machinery, and small areas of land to obtain the largest possible amount of food or other output

例句

Intensive farming methods raise grain production but can reduce soil quality over time.

domain-specific: intensive farming / intensive agriculture / intensive livestock

Sirin works on an intensive farm that uses chemicals to increase crop yields.

attributive: intensive farm / intensive farming

同義詞
  • high-yield

    focuses on output volume rather than the method of production

  • industrial-scale

    emphasises large-scale commercial operation rather than the farming method specifically

反義詞
  • extensive

    the direct opposite in agriculture: using more land with fewer inputs per area

  • organic

    different method, often non-intensive by principle

文法句型

intensive + farming / agriculture / cultivation

用法筆記

This sense is contrasted with extensive farming, which uses larger areas of land with lower inputs of labour, fertiliser, and machinery per hectare. Intensive agriculture often raises environmental concerns about soil depletion, water use, and pollution.

intensive — noun